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i collection(and my ears) cr Welcome to ... TUBE MUSEUM NEW YORK NOS 1960's VALVO 12AU7 ECC82 AMPEREX HOLLAND MATCHED PAIR TROPHY-QUALITY NEW TUBES, pa_5889 - Feedback left by buyer pa_5889 (62). Past month Reputation of Tube Museum precedes itself. NOS tube received is indeed new, tip to pin. Worth paying a premium. NOS 1960's VALVO 12AU7 ECC82 AMPEREX HOLLAND MATCHED PAIR TROPHY-QUALITY TUBES # 1 (#296086076313) THESE ARE FROM THE SAME HOLLAND FACTORY THAT LABELS THESE AS "BUGLE BOY", SAME TUBES AS BUGLE-BOY ECC82 ONLY VALVO ASKED THE HEERLEN FACTORY TO LABEL THEM! SUPERB QUALITY THAT'S NEARLY IMPOSSIBLE TO FIND SO METICULOUSLY PRESERVED 59-YEAR OLD NEW OLD STOCK NEVER-SOLD GEMS, SECURELY PACKED, TESTED, AND PROMPTLY DELIVERED. TUBE MUSEUM NEW YORK NOS MUSEUM QUALITY TUBES* VALVO AMPEREX HOLLAND FACTORY ECC82 = 12AU7 NOS MATCHED PAIR MADE IN HOLLAND in the 1960's AMPEREX MADE with VALVO LOGO REAL NEW-OLD-STOCK No Difference than the 45-degree angled getter version as the insignificant angle of the getter does not help or hinder the operation or sound of the tube! Here you know the test results you are getting, and a PERFECT matched pair with NO guesswork or surprises upon arrival! * A tube that has all characteristics equal to the PUBLISHED values, in other words that its PARAMETERS all lie in the centre of their BELL CURVE distributions. SOME TUBES HAVE COSMETIC BLEMISHES * Pictures of these "MADE IN THE HEERLEN HOLLAND FACTORY." ECC82 / 12AU7 PAIRS for Detailed sound! *Silk-screen PRINT will VARY as this is a multiple item listing. WE MATCH BY TEST RESULTS AND NOT COSMETICS! Made in HOLLAND 59-years ago and still NEW! ALL PAIRS HAVE NEAR-PERFECT QUALITY LETTERING and MIRROR-MATCHED SIDES CERTIFIED ULTRA-LOW-NOISE SPECIMENS Symmetrically Balanced triodes! QUITE RARE MIRROR-MATCHED NOS BE THE FIRST TO EXPERIENCE THESE NOS ECC82's IN YOUR PREAMP Pair 1: 2,200/2,200+ (100%/100%) SOLD Pair 2: 2,200/2,200 (100%/100%) Available! Pair 3: 2,200/2,200 (100%/100%) Available! Pair 4: 2,200/2,200 (100%/100%) Available! TESTED FOR NO MICRO-PHONICS, NO LEAKS, STABILITY AND LONGEVITY QUIET TUBE-PERFORMANCE! PRECISION TESTED & LIVE AUDITIONED AMPLITREX AT1000 TESTED Zero (0) Gas and Zero (0) H-to-K Leaks, as displayed in the Amplitrex AT1000 screen photos! TubeMuseum tested tubes takes the guesswork out of the process of selection delivering you the best Audio tubes that there possibly can be. TUBE MUSEUM QUALITY TUBES * fixed-bias mode like Hickok testers! * PASSED THE AMPLITREX DIGITAL TESTS = NO GAS and NO HEATER-TO-CATHODE LEAKS! zero (0) Heater-to-Cathode leakage ACTUAL PICTURES OF THE TUBE WITH THE 196x DELTA Δ CODE example how to read: DATE CODE Δ 5 D 1 Δ = PHILIPS HEERLEN HOLLAND 5 = 196 5 , D = month April "O" Getter GRAY-PLATE & ELECTROSTATIC-SHIELD TESTED AT REAL-WORLD POWER LEVELS ON AMPLITREX AT-1000 Precision tested in the Fixed-Bias Mode Tested on Amplitrex AT1000 Digital Tube Test System ..." * Rp or plate resistance is the second most important parameter as it directly affects the output impedance of the preamp. Circuit designers are looking at Mu primarily, Rp next and we hardly care about Gm at all. Why then do most vendors measure Gm and Gm alone? Because most testers only measure Gm! No commercial tester ever measured Mu either ( until the AMPLITREX AT1000 was introduced.) And even the Hickock, treasured for measuring Gm, doesn’t measure it meaningfully (due to current dependency), accurately (due to calibration difficulties) or consistently (due to internal circuit drift).'"... This tube is known for excellent performance, smooth highs, liquid midrange, outstanding 3-D holographic soundstage, lots of open-air, inner detail, and overall perfect resolution and balanced sound. Terms of Sale PRICE IS EACH PAIR! Silk-screen PRINT will VARY as this is a multiple item listing. * Pictures of these "MADE IN THE HEERLEN HOLLAND FACTORY." ECC82 / 12AU7 PAIRS for Detailed sound! Silk-screen PRINT will VARY as this is a multiple item listing. WE MATCH BY TEST RESULTS AND NOT COSMETICS! International Buyers – Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. We do not guarantee that your tester, or your tester's measurements will be the same as the Amplitrex AT-1000. Older testers, different testers, or the same tester may report different test measurements, and may not measure the same tube meaningfully (due to current dependency), accurately (due to calibration difficulties) or consistently (due to internal circuit drift) There is no warranty or returns based on what any other tube tester reports. THE COST OF ALL USA SHIPPING INCLUDES INSURANCE, TRACKING NUMBER AND DELIVERY CONFIRMATION International Buyers - Please note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. Visit this seller's eBay Store! 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